CVE-2026-122056
mediumA flaw was found in OpenSCAP.
A flaw was found in OpenSCAP. A heap-based buffer overflow can occur when processing a specially crafted Extensible Configuration Checklist Description Format (XCCDF) document using the sds-compose option. An attacker could exploit this vulnerability to corrupt memory, resulting in an application crash and a Denial of Service (DoS).
CVSS
5.9
5.9 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-11-09 22:18
Modified: 2026-11-11 21:16
NVD status: Awaiting Analysis
Last synced 5 hours ago
Verified against the source API 2026-11-11 21:41 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/security/cve/CVE-2026-122056 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2567100 secalert@redhat.com
- https://github.com/OpenSCAP/openscap/security/advisories/GHSA-5h6x-q65w-wxvf secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 21:41 UTC · record ↗